where \(h\)  is the thickness of the material and \(\nu \)  is Poisson's ratio. For triangular lattices \(\nu \)  cannot be independently tuned, so \(\nu = 1/3\)  always [1]}, [2]}, and \(Y = Y_{2D}/h\) . Thus we can rearrange Eq. (REF ) and use the relationships in Eq. (REF ) to isolate the effective thickness:
\(h_{\text{eff}} = \sqrt{\frac{8 k_b}{k_s}}\, .\) 
